Greenintel

I am looking to buy some used 2016 OEM Lexus Rx350 rims on marketplace for some winter tires. They have the same center bore (60.1) and bolt pattern (5x114.)

I noticed though that the 2016 Rx 350 has 235/65/R18 size tires on the rims (8JJx18 ET30) and my 2011 Rx 350 has 235/60/R18 size tires on the rims (7.5JJx18 ET35).

Will the 2016 rx 350 rims fit on my 2011 rx 350? Do I need to do any modifications?

Clutchless

They will fit just fine. No modifications needed. You can run your same size tires on them. For winter tires you want to use the same size tires, nothing wider.
They are only 1/2 inch wider and the offset is only 5 mm different.
According to the calculator link below the new wheels work just fine. I have 8 inch wide 19 inch wheels on my RX and they fit perfectly with much wider 255 tires..

​​​​​​https://www.clublexus.com/forums/tir...calculator.php

MattRX

Be careful with thread engagement with the 18x8 rims from a 4th gen RX. I had to get longer wheel studs to mount them on my RX as the face of the rim is thicker and there is less room for the lug nut to engage. This is why the 4th gen RX has longer wheel studs than a 2nd or 3rd gen RX.

Greenintel

Thanks for the info and link. To confirm, when you say to run the same size winter tires, do you mean I should run the 235/60/r18 tires that are currently on my 2011 rx350 on the new rims that are from the 2016 rx350?

carguy75

I installed some newer style(2016+) 20in wheels on my 2015 RX350 AWD without any issue. I just bolted on the wheels and they fit perfectly. I am running 255/45-20 tires that closely matches the stock 235/60-18 tires diameter. Therefore, I assume that you can use the newer style 18in wheels with the proper sized tires.

My upgraded wheel specs.

Clutchless

Greenintel asked - "do you mean I should run the 235/60/r18 tires that are currently on my 2011 rx350 on the new rims that are from the 2016 rx350?"
The answer is YES.

The only difference is that they are 1/2 inch wider. This will make your tires sidewalls a bit wider and stiffer as they will not bend as much and your steering may appear more responsive, depending on what tires your get.

You will also have to get another set of TPMS (tire pressure monitors) (if they did not come with the wheels) for the new wheels and have the tire shop pair them with your car. If the new used wheels have TPMS installed you need the tire shop to scan them to make sure they all have good batteries before installing tires. Replacing tires after 8 years it is a good idea to replace the TPMS as preventive maintenance as they are likely to fail before the new tires wear out. This saves money installing them again as the tires have to be removed, then reinstalled and rebalanced when you get new TPMS. The cheapest cost I have seen for them is at Costco for about $250 but it can run to double that depending on the shop.

If you want to get the best driving performance you will be better off using the wider wheels in the Summer and your original narrower wheels for winter tires. Winter tires are usually narrower as it enables them to better cut through the snow instead of floating on top of it.